Dyeing apparatus



(No Model.) 2 Sheets-Sheet 1 U. WELDON. DYBING APPARATUS. No. 880,888. Patented Apr. 10, 1888.

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(No Model.) 2 Sheets-Sheet 2. U. WELDON.

DYEING APPARATUS. No. 380,838. 1 Patented Apr. 10, 1888.

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URBAN WELDON, OF COHOES, NEW YORK.

DYEING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 380,838. dated April. 10, 1888.

Application filed December 27, 1887. Serial No. 258,988. (No model.)

of this specification.

Similar letters refer to similar parts in the several figures therein.

My invention relates to improvements in dyeing apparatus; and it consists of the novel construction and combination of parts hereinafter described, and pointed out in the claims.

The invention is to be considered as an improvement upon the apparatus shown and described in United States Letters Patent No. 334,793, issued January 26, 1886, to A. Moran, to which reference may be had. The apparatus therein described consisted, essentially, of a dipping wheel or cylinder rotary in a vat containing dye-stuff, and provided with perforated partitions for carrying the fabric through the dye-stuff,extendinglongitudinally of the cylinder, and of a peculiar curved shape in cross-section, the curve extending in a long sweep from the hub on a point near the axle to the periphery of the wheel. This form of partitions caused the fabric to roll from a point near the periphery of the wheel down to the hub as it was lifted from the dye-stuff, which more or less entangled and knotted the fabric, instead of imparting to it a half-revolution to bring its sides alternately in contact with the carrying'part-itions, the result being that the fabric was not dyed evenly.

To overcome the difficulty of rolling the goods, partitions having angular or V shaped pockets to receive the fabric have been employed; but this form does not wholly overcome the difficulty, as the inclination of the inner side wall of the V-shaped pockets thus formed in the partition near the periphery of the wheel causes the fabric to commence sliding or rolling therefrom before the pocket is vertically over the hub or axle of the wheel,

and as the wheel necessarily travels slowly the fabric will frequently be given a complete revolution in falling from the V-shaped pocket to the center of the wheel. I have ascertained that by giving the partitions approximately the shape of a sickle, the part representing the handle of the sickle extending radially in an approximately straight line about half the distance from the hub to the periphery of the wheel and the remaining distance in approximately the form of the blade of a sickle or semi-circle, the fabric will not start to leave the semicircular pockets until the radiallystraight portion of the partition is nearly vertical, whereby only a semi-revolution is imparted to the fabric as it falls into the dye stuff below, or upon the backof the contigu ous'pocket,which leaves it floatingin the dyestuff, to be again caught by the pocket which has just dropped it, but with that side of the fabric which was previously in the bottom of the pocket now at the surface of the pocket, to be thoroughly permeated by the dyestuff as the fabric is forcibly borne through it by the moving pocket, the operation being repeated at each rotation of the wheel.

Another feature of my invention consists in forming the pockets of round rods extending longitudinally of the wheel to present only rounded surfaces to the fabric and insure uniformity of surface throughout the length of the pocket, and thereby uniform treatment of the fabric.

Figure l of the drawings is a side elevation of my improved apparatus. Fig. 2 is a central longitudinal section of my improved dipping wheel or cylinder. Fig. 3 is a vertical crosssection of the dipping-wheel detached. Fig. 4 is an end elevation of the apparatus shown in Fig. 1. Figs. 5 and 6 are respectively longitudinal and transverse central vertical sections.

A represents the dipping-wheel, and B the vat containing the dye-stuff and adapted to receive the lower part of the wheel. The wheel is in the form of a cylinder made up of the two circular disks A, constituting the heads of the wheel or ends of the cylinder. These heads The heads are provided exteriorly with suitable gudgeons or bearings, A, rotary in boxes A secured upon the end supports or heads of the vat. One of the gudgeons may have a pulley, A, fixed thereon, or other means for receiving power.

The partitions b are made up of the round rods A", with spaces between, and the larger supporting-rod,a, all extendinglongitudinally of the wheel from head to head, and a series of short radial rods or slats, b, with small spaces between, the radial rods being supported at their outer ends by the longer longitudinal rod, A, and at their inner ends by the hub A These partitions divide the Wheel into spaces for receiving and carrying the fabric to be dyed, dippingit into the dye-stuff on one side of the vat, carrying it through the dye-stuff in the vat, and lifting it therefrom on the opposite side of the vat and carrying it back, to be again dipped at each rotation of the wheel.

The vat is preferably made of the heads B, having a semicircular channel, F to receive the ends of the staves F F, forming the bottom and sides of the vat, and held together by the threaded exterior rods, H, passing through the heads and secured by nuts B, by

V the bottom of the vat I am able to run the wheel close to the bottom of the vat, and accomplish the operation of dyeing with a minimum quantity of dye-stuff.

By forming the partitions b entirely of rounded rods arranged with spaces between, the dye-stuff is permitted to pass freely through the same, and the fabric cannot be cut or injured by contact with sharp edges.

By having the rods, forming the inner portion of the partitions, extend radially, the fab rie slides easily to or from the periphery of the wheel, should it come in contact with the same in passing to and from the pockets a.

By having the pockets at semicircular in shape, substantially as shown, with the inner side wall of the pockets at their months about right-angular to their respective radial partitions, of which they form an extension, I am able to repeatedly dip thefabric in the dyestufi" and reverse the position of the fabricin the pockets at each rotation of the wheel without snarling or knotting it. By employing pockets the cross-sectional form of which is curved or rounded, instead of angular or V shaped,the fabric is notliable tobecomewedged in the bottom of the pockets and be carried around with the wheel without falling out, thereby securing a positive reversal of the position of the fabric relatively to the pockets at each rotation of the wheel, and consequent uniformity in distribution ofdye stuff through the fabric.

What claim as new, and desire to secure by Letters Patent, is

In a dyeing apparatus, a dipping wheel or cylinder rotary in a dye-vat, consisting of two heads provided with bearings and connected by a hub, radial partitions, and longitudinal pockets, said partitions consisting of rows of pins or rods projecting radially from the hub to the several pockets at points about half-way between the hub and periphery of the wheel,the pockets consisting of rounded rods extending longitudinally from head to head of the wheel, and having a cross-sectional arrangement approximately in the form of a semicircle, the inside wall of the respective pockets at its point of junction with the rows of radially-projecting pins being approximately right-angular to said pins, substantially as described, and for the purposes set forth.

In testimony whereof I have hereunto set my hand this 23d day of December, 1887.

URBAN \VELDON.

Witnesses:

GEO. A. MOSHER, W. H. HOLLISTER, J r. 

